Need info on melting points

Some of my clay students are interested in embedding other materials in
their clay work before bisque firing. I figure this is okay as long as
the materials have a higher melting point than the 06 firing temperature we
usually use. Does any one know the melting point of aluminum? How
about the melting point of common bottle glass or plain glass pony beads.
We want to use some pull tabs off canned sodas (no color on this part of
the can) and maybe some worn beach glass or glass beads we have. We're
planning to create some thrones for different imaginary gods--like the God
of Soda. I use two large electric kilns.

I do a lot of clay with my students but am definitely not a clay expert.
Any help would be appreciated.